Unyango lokukhanya belukho logama izityalo nezilwanyana bezisemhlabeni, njengoko sonke singenelwa ukusa kumlinganiselo othile kukukhanya kwelanga okungokwemvelo.
Akukhona nje ukukhanya kwe-UVB okuvela elangeni kusebenzisana ne-cholesterol esikhumbeni ukunceda ukwenza i-vitamin D3 (ngaloo ndlela ibe nenzuzo epheleleyo yomzimba), kodwa inxalenye ebomvu ye-spectrum yokukhanya ebonakalayo (600 - 1000nm) iphinda idibane ne-enzyme engundoqo ye-metabolic. kwimitochondria yeeseli zethu, iphakamisa isiciko kwisakhono sethu sokuvelisa amandla.
Unyango olukhanyisayo lwangoku lukho ukususela ekupheleni kweminyaka yoo-1800, kungekudala emva kokuba umbane kunye nezibane zasekhaya zaba yinto, xa iZiqithi zaseFaroe ezazalelwa eNiels Ryberg Finsen zazama ukukhanya njengonyango lwezifo.
UFinsen kamva waphumelela ibhaso leNobel lamayeza ngo-1903, unyaka omnye ngaphambi kokufa kwakhe, ephumelele kakhulu ekunyangeni ingqakaqha, ilupus kunye nezinye iimeko zolusu ngokukhanya okugxininisiweyo.
Unyango lokukhanya lwakwangoko lubandakanya ukusetyenziswa kwebhalbhu zemveli ze-incandescent, kunye ne-10,000 yezifundo zenziwe ekukhanyeni kwinkulungwane yama-20.Uphononongo luvela kwimiphumo yeembungu, okanye iintaka, abafazi abakhulelweyo, amahashe kunye nezinambuzane, ibhaktheriya, izityalo kunye nokunye okuninzi.Uphuhliso lwamva nje lwalukungeniswa kwezixhobo ze-LED kunye ne-laser.
Njengoko imibala emininzi iye yafumaneka njengee-LED, kunye nokusebenza kobugcisa kwaqala ukuphucuka, ii-LED zaba lolona khetho lunengqiqo nolusebenzayo kunyango olulula, kwaye lumgangatho weshishini namhlanje, kunye nokusebenza kakuhle kusaphucuka.
Ixesha lokuposa: Sep-06-2022